5450681 has 2 divisors, whose sum is σ = 5450682. Its totient is φ = 5450680.

The previous prime is 5450677. The next prime is 5450689. The reversal of 5450681 is 1860545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2839225 + 2611456 = 1685^2 + 1616^2 .

It is a cyclic number.

It is not a de Polignac number, because 5450681 - 2² = 5450677 is a prime.

It is a super-2 number, since 2×5450681² = 59419846727522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5450689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2725340 + 2725341.

It is an arithmetic number, because the mean of its divisors is an integer number (2725341).

Almost surely, 2^5450681 is an apocalyptic number.

It is an amenable number.

5450681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5450681 is an equidigital number, since it uses as much as digits as its factorization.

5450681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 5450681 is about 2334.6693556048. The cubic root of 5450681 is about 175.9882158949.

It can be divided in two parts, 5450 and 681, that multiplied together give a triangular number (3711450 = T₂₇₂₄).

The spelling of 5450681 in words is "five million, four hundred fifty thousand, six hundred eighty-one".